Expanding apparatus for agricultural product such as tobacco mat

Details Expanding apparatus for agricultural product such as tobacco mat Expanding apparatus for agricultural product such as tobacco mat

1992-05-20

1994-05-17

Millin, Vincent

Tobacco

Tobacco treatment

Puffing

131900, 131901, 96130, A24B 318

Patent

active

053118855

ABSTRACT:
An expanding apparatus continuously expands a material, e.g., a tobacco material and supplies gaseous carbon dioxide as an expanding agent to an impregnating vessel by an expanding agent supply to maintain a predetermined impregnating pressure. The material is continuously supplied to the impregnating vessel by a material supply while increasing the pressure of the material. The material is continuously discharged from the impregnating vessel by a material discharge while decreasing the pressure of the material. The expanding agent supply has a heat exchanger to perform heat exchange between carbon dioxide to be supplied to the impregnating vessel and a coolant, thereby cooling carbon dioxide. The state of carbon dioxide to be supplied to the impregnating vessel is controlled in accordance with the temperature or the like of the tobacco material discharged from the impregnating vessel, so that carbon dioxide is effectively impregnated and no dry ice is formed in the material discharge or the like.

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